Exterior Wall System with Interlocking Seal
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Solution Overview
Problem
Conventional exterior wall systems in high-rise buildings, such as curtain walls, are not load-bearing and require extensive manual sealing or caulking, which increases construction time and costs, while also lacking a comprehensive structural and insulation integration.
Innovation Solution
An exterior wall system comprising a structural layer with cold-formed steel components, an insulation layer, and a siding layer, where the structural layer is connected to the building framework to support the wall section and includes an interlocking structure along the perimeter to form a seal with adjacent sections, reducing the need for manual sealing and enhancing insulation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional curtain wall systems are used, then the exterior wall can be assembled quickly with pre-fabricated modular units, but the system is not load-bearing and requires extensive manual sealing or caulking which increases construction time and costs
Solution Approach 1:
The exterior wall system is divided into modular wall panels that can be pre-fabricated off-site and assembled quickly on-site. Each panel is a self-contained unit with integrated structural, insulation, and siding components, allowing rapid installation while maintaining load-bearing capability.
Solution Approach 2:
The patent combines multiple functions into a single integrated wall panel system: structural support (load-bearing), thermal insulation, exterior siding, and interlocking sealing mechanisms. This merging eliminates the need for separate manual sealing operations required by conventional curtain walls.
Solution Approach 3:
Wall panels are pre-fabricated with interlocking structures and sealing mechanisms already integrated during manufacturing. The preliminary preparation of these panels includes pre-attached siding, insulation, and interlocking features that eliminate on-site manual sealing work.
2Ease of manufacture
If conventional exterior wall systems require manual sealing or caulking, then the walls can be assembled, but the construction time and costs increase
Solution Approach 1:
The interlocking structures are designed to automatically form seals when wall panels are assembled together. The system serves itself by creating watertight and airtight connections through the mechanical interlocking of panel edges, eliminating the need for external sealing operations.
Solution Approach 2:
The patent replaces the manual mechanical process of caulking and sealing with an automated mechanical interlocking system. The interlocking structures use mechanical engagement (such as tongue-and-groove or interdigitated patterns) to create seals without requiring manual application of sealants.
3Productivity
If pre-fabricated wall sections are used to reduce construction time, then assembly speed improves, but comprehensive structural and insulation integration becomes more difficult
Solution Approach 1:
The patent integrates structural frames, insulation layers, and siding into single pre-fabricated wall panels. This merging of multiple subsystems into unified modules simplifies on-site assembly while maintaining comprehensive integration of structural and insulation functions.
Solution Approach 2:
The wall panels are designed as multi-functional units that simultaneously provide structural support, thermal insulation, exterior finish, and interlocking sealing. This universality allows a single component to fulfill multiple requirements, reducing overall system complexity despite the advanced integration achieved.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system reduces construction time and costs by allowing pre-fabricated exterior wall sections to be quickly assembled and integrated into the building framework, providing a comprehensive structural support, insulation, and a watertight seal without manual caulking, while also improving energy efficiency and fire resistance.
Implementation Method 1
An insulation layer is supported by the structural layer and includes insulation configured to insulate the building from an outside environment
Implementation Method 2
An interlocking structure extends along the perimeter and is configured to mate with an interlocking structure of at least one other exterior wall section to form a seal
Data Source
AI summary
An exterior wall section forms a portion of an exterior wall of a building. The building has multiple floors and a framework defining the multiple floors. The exterior wall section includes a structural layer to be connected to the framework. The structural layer includes a plurality of studs connected together. An insulation layer is supported by the structural layer to insulate the building. Siding is supported by the structural layer and defines an exterior side of the exterior wall section. A perimeter of the exterior wall section is defined by the edge margins of the structural layer, the insulation layer and/or the siding. The exterior wall section includes an interlocking structure extending along the perimeter that mates with an interlocking structure of another exterior wall section to form a seal with said another exterior wall section when the exterior wall sections are connected to the building.